Put 3 phones next to each other with similar hardware design, Android, Symbian, iphone ask 10 non-geeks to use the phone (mid 30's non tech workers) to do tasks such as - make a call, answer a call - use calender to make an appt - add/edit/delete a contact - create a playlist of music - turn on/off bluetooth - download a popular app (Shazaam) - browse the photo gallery - give marks on how "smooth" the UI is Symbian is just too clunky when compared to the other 2 for everyday tasks for "average joe".